Two objects were lifted by a machine. one object had a mass of 2 kilograms, was lifted at a speed of 2m/sec . the other had a mass of 4 kilograms and was lifted at 3m/sec. which object had more kinetic energy while it was being lifted? show all calculations

prolly a beacuse the momentuem the car has increases while going down hill

a and c

c is 100% but i am confused in a

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.